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LTC2499CUHF PDF预览

LTC2499CUHF

更新时间： 2024-01-03 10:41:42
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
34页 435K
描述
24-Bit 8-/16-Channel ΔΣ ADC with Easy Drive Input Current Cancellation and I2C Interface

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LTC2499CUHF 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active包装说明：HVQCCN,
针数：38Reach Compliance Code：compliant
风险等级：5.35最大模拟输入电压：5.5 V
最小模拟输入电压：最长转换时间：163500 µs
转换器类型：ADC, DELTA-SIGMAJESD-30 代码：R-PQCC-N38
JESD-609代码：e3长度：7 mm
湿度敏感等级：1模拟输入通道数量：16
位数：24功能数量：1
端子数量：38最高工作温度：85 °C
最低工作温度：-40 °C输出位码：2'S COMPLEMENT BINARY
输出格式：SERIAL封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装形状：RECTANGULAR
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.8 mm
标称供电电压：5 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：30
宽度：5 mmBase Number Matches：1

LTC2499CUHF 数据手册

 浏览型号LTC2499CUHF的Datasheet PDF文件第2页浏览型号LTC2499CUHF的Datasheet PDF文件第3页浏览型号LTC2499CUHF的Datasheet PDF文件第4页浏览型号LTC2499CUHF的Datasheet PDF文件第5页浏览型号LTC2499CUHF的Datasheet PDF文件第6页浏览型号LTC2499CUHF的Datasheet PDF文件第7页 
LTC2499  
24-Bit 8-/16-Channel  
ΔΣ ADC with Easy Drive Input Current  
2
Cancellation and I C Interface  
FEATURES  
DESCRIPTION  
The LTC®2499 is a 16-channel (eight differential), 24-bit,  
n
Up to Eight Differential or 16 Single-Ended Inputs  
Easy Drive™ Technology Enables Rail-to-Rail  
Inputs with Zero Differential Input Current  
Directly Digitizes High Impedance Sensors with  
Full Accuracy  
n
n
n
No Latency ΔΣ™ ADC with Easy Drive technology and a  
2
2-wire,I Cinterface.Thepatentedsamplingschemeelimi-  
nates dynamic input current errors and the shortcomings  
of on-chip buffering through automatic cancellation of  
differentialinputcurrent. Thisallowslargeexternalsource  
impedances and rail-to-rail input signals to be directly  
digitized while maintaining exceptional DC accuracy.  
2
2-Wire I C Interface with 27 Addresses Plus One  
Global Address for Synchronization  
600nV RMS Noise  
n
n
n
n
Integrated High Accuracy Temperature Sensor  
The LTC2499 includes a high accuracy, temperature  
sensor and an integrated oscillator. This device can be  
configured to measure an external signal (from combi-  
nations of 16 analog input channels operating in single-  
ended or differential modes) or its internal temperature  
sensor.Theintegratedtemperaturesensoroffers1/30th°C  
resolution and 2°C absolute accuracy.  
GND to V Input/Reference Common Mode Range  
CC  
Programmable 50Hz, 60Hz or Simultaneous 50Hz/  
60Hz Rejection Mode  
2ppm INL, No Missing Codes  
n
n
n
1ppm Offset and 15ppm Full-Scale Error  
2x Speed/Reduced Power Mode (15Hz Using Internal  
Oscillator and 80μA at 7.5Hz Output)  
No Latency: Digital Filter Settles in a Single Cycle,  
Even After a New Channel Is Selected  
Single Supply 2.7V to 5.5V Operation (0.8mW)  
Internal Oscillator  
The LTC2499 allows a wide common mode input range  
n
(0V to V ), independent of the reference voltage. Any  
CC  
combination of single-ended or differential inputs can  
be selected and the first conversion, after a new channel  
is selected, is valid. Access to the multiplexer output en-  
ables optional external amplifiers to be shared between all  
analog inputs and auto calibration continuously removes  
their associated offset and drift.  
n
n
n
Tiny 5mm × 7mm QFN Package  
APPLICATIONS  
n
Direct Sensor Digitizer  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
No Latency Δ∑ and Easy Drive are trademarks of Linear Technology Corporation. All other  
trademarks are the property of their respective owners.  
n
Direct Temperature Measurement  
n
Instrumentation  
Industrial Process Control  
n
TYPICAL APPLICATION  
Data Acquisition System with Temperature Compensation  
Integrated High Performance Temperature Sensor  
2.7V TO 5.5V  
5
4
CH0  
CH1  
MUXOUT/  
ADCIN  
V
CC  
10μF  
0.1μF  
3
2
•
•
•
+
REF  
1.7k  
1
+
CH7  
CH8  
IN  
16-CHANNEL  
MUX  
SDA  
SCL  
0
24-BIT $3 ADC  
WITH EASY DRIVE  
2-WIRE  
2
•
•
•
I C INTERFACE  
–1  
–2  
–3  
–4  
–5  
–
IN  
CH15  
COM  
–
REF  
f
O
TEMPERATURE  
SENSOR  
MUXOUT/  
ADCIN  
OSC  
2499 TA01  
–55 –30 –5  
20  
45  
70  
95 120  
TEMPERATURE (°C)  
2499 TA02  
2499fc  
1
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